Shaping machine with variable-power traverse



W. F. ZIMMERMANN SHAPING MACHINE WITH VARIABLE POWER TRAVERSE;

Sept. 25, 1928.

Filed March 13, 1926 3 Sheets-Sheet avwewcoz Sept. 25, 1928. 1,685,659

I w. F. ZIMMERMANN SHAPINGMACHINE WITH VARIABLE POWER TRAVERSE Filed Mal-ch13, 1926 7 3 Sheets-Sheet 2 as, my

au-Mfwmv Sept. 25, 1928.

w. F. ZIMMERMANN SHAPING MACHINE WITH VARIABLE POWER TRAVERSE Filed March 13, 1926 5 Sheets-Sheet 3 7x as avwento't altar/nu Patented Sept. 25, 1928.

g 1 N ED- ST T 1,685,659 PATENT OFFICE.

zncimnmn, ormumwoon, new mnsnr.

mints mdnrnn WITH Vanuatu-rowan. TRAVERSE.

isali n d n n 13,1928. ise m noyeaeza This invention relates to shapers ofthe powerquick-traverse type proposed by my two Patents 1,615,185 and1,665,389; issued on my ending applications (Nos. 87 ,068 and iiledrespectively on February 9, 1926, and March 13, 1926.) and it undertakesto carry forward and improve {upon the same.

The aforesaid initial embodiments of the power Qquick-trawerse possess the striking advantage that thetool strokes maybe varied -,to any exten twithout affecting the rate of traverse, but to do this the main-line transmission was shown as substantially coextens'ive with the main body-casting; I have now contrived. by adopting a dependence between the tool strokes a'ndthe rate of traverse, to extend the mainline transmission to the cross rail. andfatthat locality, to mount the two' branch-linetransmissions for the feed and the power quick-traverse; thereby materially reducing the number of elements and better adapting the machine for the more intensive 7 sort or heavy-duty'labor involved in severe production manufacturing. I I I In the aforesaid embodiments, the magnitude of feedjwasadjustedat the body-cast ing andl its direction at the cross-rail fso that the controls were scattered. .The; present arrangements make "it possible to centralize the controls for thepower quick-traverse, as

well as of the feed, and thereby relieve" the attendant from the loss of: time duete the original inconvenience of dispersed controls. By the present construction, it hasbecome possible'to bringfwithin the immediate reach of the user the cont'rol for therapidtraverse and also all of the controls for the feed which werelocated near the bun ee; all

of these controls being now locatedat the cross-rail and being (a) for starting either the rapid traverse or) the feed, b) for changing the direction ofeither' and (0.)forvarying the magnitude ofthe feed. Furthermore, all of the hand-grasps for the various controls have not only been: relocated and centralized where most'accessible to the user,

i but of the hand-grasps are'stationary and devoid of all rhythmiclmovement; thereby enabling the attendant to make his adjust ments with ease and accuracy.

Also, the mam-line transmission is so extendedlto the cross-rail, that the synchronism between the feed and the ram. is preserved for all speed-adjustments ofjthe ram; said extension including a single unidirectional S f wh Mates t es determined by the change-gears for the ram and conveys motion which, at the rail, is converted into interniittent motion for the feed or into continuous motion for the rapid traverse. In this instance, the rate of the traverse is proportional to. the frequency of oscillations of the ,ram,but with the result that the structime has been simplified and'the attendant has been spared all avoidable movements.

A wide variation in the rate of quick-traverse would be intolerable but, for special purpose shapers of the manufacturing type,

the range would be narrow andwould 1nclude'an average 'absoluterate for which the machine would be designed to run; the factors being determined by the limited scope but nevertheless large quantities of work to beQmachined in the quantity production.

, Figure 1 is an elevational view of a shaping machine having feedingmechanism constructed in accordance with my invention.

Fig. 2 is a sectional view along the line 2-.2 of 'Figll. -Fig. 3 is. a sectionalview along the line 3 3 of Fig. 2. Fig. 4 is a plan view of feedinglmechanism mounted on the end of thelshaper rail. 7 Fig. 5 is asectional view along the: line 55 oflFig. 4;;Fig. 6 is a 4.1' Fig.7 is" a sectional. viewalong the line 7-'7of Fig; 1. I

Referring to the. accompanying drawings,

ashaping machine. is illustrated comprising parts throughout all theviews, of which 2-- sectionalview along the line 6- 6 of Fig. l

a main frame 1 having a reciprocating ram 2 mounted. thereon. The ram 2 carries a tool-head 3 having a suitable cutting tool 4 mounted therein. A rocker-arm5, which is oscillated in aconventional manner by a crank gear wheel 6, serves to effect reciprocatory movement of the ram 2. The rocker arm 5 is clamped to the ram 2 by means of a lever 7.. and a shaft 8, which operates a screw shaft, not illustrated, is provided for adjusting the ram with respect to the rocker arm, A cross rail9 is movable vertically on the main frame 1 of the machine and carries a work carrying table 10. The Work carry ing table 10 isfed and traversed along the.

cross rail 9 by means of a feed screw 11 in a manner to be hereinafter-setforth.

The crank gear wheel6 has a bearing in a hub 12 projecting from the main frame 1 of the machine shown in Fig. 7 of the drawings. A plate 13, which is secured to the gear whet-l6 by means 'of bolts 14, serves to prevent axial or longitudinal movement of the gear wheel in the frame. An adjusting 11111 1115, which controls the connection of the/crank gear wheel 6 to; the rocker arm 5 projects through the plate 13 and the crank gear wheel 6 as shown in Fig. 7 of the drawings; The shaft 15 is provided with a squared end 16 for operating it in the usual manner. 7 The'mechanisni operated by the shaft 16 is'old and well-known and accordingly a description thereof is deemed-unnecessary. A' bevel gearwheel 17, which is rotatable with respect to the shaft 15, is secured to the plate 13 by means of bolts 18, one only of which is illustrated on the drawings. The bevel gear wheel 17-meshes with a bevel gear wheel 19, which is connected to a connecting feed rodjin the form of a universal shaft. The rod 20' extends to the cross'rail 9 of the machine andis continuously rotated in a uniform direction by the crank gear wheel 6 directly in accordance with the movement of the ram 2. v The connecting rod 20 is pivotally joined to a shaft v 21 on the cross rail 9.

' The shaft 21is journaled in a housing 22 which is directly secured to the cross rail 9. On the end of theshaft 21 isfixedly mounted a crank lever 23. Thecrank lever 2 3 is connected to a crank arm 24by means of a pin 25. The crank arm. 24 is secured to I an oscillating lever 26. by means of a pin 27,

as bestshown in Fig. 2 of the drawings.

The oscillating lever 26 is journaled in a wall 28 of the housing 22 and serves as a support for one end of a feed shaft 29'. Inasmuch as the shaft 21 is continuously rotated by means ofgthe connecting rod 20it is japparent the oscillating lever 26 is continuously moved "through a fixed are by means of the crank arm 24.. v I

An arm30, which projects from the oscillating lever 26, engages a surface 31 on a pawl lever 32. The pawl lever 32 is rotatably mounted on the feed shaft 29. and is oscillated through various arcs by the oscillatT ing lever 26 to effect feeding movements of the Work carrying table 10. ring 33, having worm teeth 34 formed thereon, is secured to the pawl lever 32 and serves to adjust the rotative position of the pawl lever 32 on the feed shaft 29. The worm teeth 34 engage a worm- 35 which is formed one worm shaft 36. The worm shaft 36 is rotatably 'inounted in thehousing 22 as best shown in Fig. 6 of the drawings. A spring member 37, which extends into an orifice 38 formed in the shaft '36, 'exerts 'a force tending to hold the shaft 36 in engagement-with 'an adjustment shaft 39. One end of the per end of the worm shaft 36. The Id 'justing. shaft 39 is rotatably mounted in a plate 41 which is securedto the housing 22.

A hand grasp 42 is secured to i thelshaft 39 on onef'side of the plate 41 and a gear wheel rotatedin accordance with the'movement of the hand grasp 42jbut is free to move longitudinally or axially with respect to the shaft 39. i I

ed on the shaftj39, meshes with a gear wheel 45 which is connected to a graduated dial 46. The dial 46' is mounted. on one side of the plate 41 whereasthe gearwheel .45 is.

moun d, onjt-he oppositefside of he lat A spring pressed ball 42' engages suitable detents-formed in the upper surface of the gear wheel 45 for holding the. dial 46 and 143 is secured to the shaft '39. on the opposite side; of the plate'4l.. The worm shaft .36, is i The gear wheel 43, whichis fixedly mountt a d g asp 42 in a y op rative position.

The' graduati'ons on the dial 46 are so formed asto indicatethe exact rate of feeding that is being' efi'ectedby the work table 10,.

the above described 'mechanism, the

lam

hand grasp 42, is operated to vary the rotative position of the pawl lever 32 on the feed shaft 29. The position of the pawl lever 32 on the feed shaft 29 ,ldetermines the are through which the pawl leve'r'is operated.

Movement of the oscillating lever 26 in one directionfcauses the arm 30 to engage the pawl lever .32 and move, it through an arc in opposition to the spring member 3'Z.

When the movement of the oscillating lever 1 26' isreversed the spring memberBT moves the pawllever with thejoscillating lever until the pawl leve isin ,it'sinitia1 position. The initial position of the pawl lever is, as before set forth, adjusted bymeans of the wormmember 35, which is ,operatedhy neans-of'th'e hand grasp 42- Y A pawl member 49 is pivotally mounted on the pawl lever 32 by meansof a pin 59. The pawl member 49 engages. the'teeth of a .ratchet wheel 51 which i-srotatably mounted on the feed shaft 29 The teeth on the ratchet wheel 49 are so formed as to effect movement with the pawl member 4920x113! When the pawl member is being moved in one direction. A clutch member 52 is splined to a sleeve member 53 adjacent to the ratchet wheel 51. The clutch member 52 is the disc 64 is ad'usted" adapted tobe moved in engagement with similar clutch teeth on the side of the ratchetwheel151. 5 A yoke member 56, which engages a groove formed on the clutch .mem

ber 52, is operatediby alever' 57 for moving the clutch member into driving engagement with the ratchet wheel 51. The sleeve member 53 is rotatably mounted on the feed shaft 29'andprojects througha gear wheel 57, The gear wheel 57 is journaled ina wallio'f the housing22,"as shown in Fig. 3 of theidrawings, and meshes with a gear wheel The ar wheel 58 is fixedly mounted on the ait 21; .The gear wheel 57 has clutch teethfformed ion the side thereof which are adapted to engage similar clutchteeth formed on the clutch member 52.

A plate 59 is'splined to the-sleeve 53 and is held in engagement with a shoulder 60 on the sleeve member by means of springmemhers 61." Thespring members 61 project intoorfices formed in a collar 62, which is also splined tothe sleeve 53. v A washer 63, of friction -material and preferably of leather; is positioned between the collar 62 and a disc 64. Thedisc 64 is splinedto the feed shaft 29 and engages a nut 65 on the shaft 29. The late '59 and the disc 64 with the parts inclu ed betwe'enthem serve as a friction drive between the feed shaft 29 and the feeding and traversing mechanismoperated by -the eonnectin rod 20. The friction clutch comprising t 0 plate 59 and by meansof the nut "'65 on'theend 0 theshaft 29. -Theleverfiflfwhich controls the clutch member 52,determines whether a feeding or a traversing movement wouldbe effected by the work carrying table 10. When the clutch member 52 is moved towards the left,

ratchet wheel 51is connected to the feed Shfl'flI QQ through the sleeve member 53 and the friction-clutch comprising the plate 59 and the disc"64. The ratchet wheel 51 is intermittwtl 7 moved inauniform direction an" amonnt dhtermined in accordance with the" arc of oscillation of A the pawl; lever 32.

The are "of oscillation of the pawl lever '32 *iscontrol ledby-nreens of the hand grasp 42.

When the clutchriiember 52'is moved toward the rightflits viewed inFig. 310i the drawmounted supported on the feedgscrew 11-by means of two bushings and 71. JA clutch member 72, which is splined to thefeed screw 11, V

is positioned betweenthe two bevel gear and movement of the clutch member in an opposite-direction serves to connect the bevel gear, wheels-68 to the feed screw 11. Such clutch member 72 .serves' to control the direction of rotation of the feedscrew 11 and accordingly to control thedirection of the feeding and traversing movements which are efiected by the table 10. Arod 75, which has a bearing in the housing'22, carries an eccentric pin76. The pin 76 extends into a groove 77 in the clutch member 72. Thus,'the clutch member-72 is moved along the feed screw 11 in accordance with the rotative movement of the rod 75. The rod 7 5 is controlled by means of a hand grasp 78.? A set screw 79, which is secured in the housing 22, projects intoa groove 80 in the rod '75 and serves to prevent axial movement of the rod in the housing; 22. A. spring pressed ball 1 81 engages detents formed in therod 75, fiSvShOWD in Fig. 5 of nism through the connecting rod 20; for operating the work carrying "table 10; i The 'work' carrying table 10 may be intermittently fed in accordance with the'movemcnt of the ram 2 or may be continuously traversed in either directionq Attention is further called'to "the fact that the direction of the feeding movements and the" direction of the traverse movements are controlled at a point on the cross rail. Moreovermeans is provided onthecross rail for determining the rate offeeding movements and also for selectively determining whether a "feeding or atraverse 'movement will be effected. The direction of the feeding or traversing movement is controlledjby the hand grasp '78, which operates the clutch member .72, in the manner heretofore described; The clutch member 72 controls the direction of rotation of the-feed screw 11; The rate of the feeding movements is controlled by the hand grasp 4 2 which operates the worm 35. The worm 35varics the rotative positioniof the pawl lever 32 to vary its arc of oscillation. The rate at which feeding is being effected is-indic'at'ed by the graduated dial 46- which is moved in accordance with the movement .of the hand; grasp 42; .The lever 57 controls the clutch member 52' for determining whether intermediate feeding membersfor continuous traversemovement of the Work carryingftable 10 will be effected. I .=Without. further analysis, the foregoing will so fully reveal the gist ofthis invention that others can, by applying current knowl edge; readily adapt it for various .utiliza,

tions by retaining one or. more of. the features that, from the standpoint of-the priorart fairly" constitute essential characteristics-of either the generic or specific aspects.

ofthis invention and, therefore, such adap- .tations should be, and a-reintended to be transmission adapted to impart continuous.

motion to said table ,transmissionalanda shift-mechanism arranged to causeeither said quick-traverse transmission or said feed transmission to .drive said table. 1-

7 2 A, shaper combining a cross rail; atable; a power-driven elementp'a transmissionfrom said element to said .table includ ing two interchangeablyv available branch lines, the one adaptedto convey slow intermittent. feed motion and the other in the sameldirection to convey fast continuous motion; a sh ft-mechanism; an mdependent ;moti0nreverser for simultaneously reversing the directional effects on the table of bothaof said-branch-lines; and a feed rateadjuster located at the cross-rail.

3. A shaper combining a cross rail; a table; a main body-casting; a single unidirectional transmission extending from the body-casting to the cross rail; a feed transmission including a motion-converter atthe cross rail adapted to impart intermittent motion to said'table in a given direction; a quicktraverse transmission adapted to impart continuous motion tosaid table; and a'shift-mechanism located at the. cross-rail and arranged so to connect said quicktraverse transmission that it will drive said table.

4. A'shaper combining a table; a cross rail;"a main body-casting; a power-driven element; a unidirectional transmission shaft leading from said element to two inter changeably available branch-lines; the one includingia; motion converteri'at the crossrail' adapted to impart slow intermittent motion, and the other conveying fast continuous motion; a shift-mechanism forxsaid transmissions and an independent Tmo'tiom reverser located at" the cross-rail for simultaneously reversing the .directional effects on thetable of both of saidbranch-lines.

5. shaper combining abody-casting; a

ram; a unidirectional bull-gear; across rail; a table; a transnnsslon-system leading to said table and comprising a unidirectlona l common shaft driven synchronously with said bull-gear and leading from. the side of said body-casting adjacent saidrbulhgear to said cross-rail; an'intermittents'm'otion transmission comprisinga.feedstroke regulator;

nously with said bull-gean; a clutch for causing either of said two transmissions to convey motion to said. first-mentioned transmission system; and, a single motion-reverser for simultaneouslyreversing the directional effects on the table of both, of said transmissions. i I i 7. A shaper combining a body-casting a ram; a unidirectional.bulLgear; a crossrail; a common shaft therein a tableya transmission-system leading to saidtable and comprising a single unidirectional shaft from the side of said bodywastingadjacent said bull-gear to said. cross-rail;; an intermittent-motion transmission driven synchronously v with said bull-gea-r and comprising a feed-stroke regulator located. adjacent said cross-rail;,.acontinuous fastmotion transmission; a clutch adjacentsaid cross-rail for connecting either of. saidtwo transmissions with said common shaft; and a: single mo- .tion-reverser located at the cross-rail for simultaneously reversing the directional effects on the table of both of said transmissions. a

8. A shaper combining a body-casting; a

ram; a unidirectional bull-gear; a cross-rail;

a table; a transmission-system leading to said table; a bull-gear transmission; a trans mission driven synchronously with said bull gear and comprising a motion-converter at the cross-rail for producing intermittentfeed motion; fast-motion transmission; a clutch for causing either of said two transmissions to convey motion to said first-mentioned transmission system; and a manual control for said clutch.

9. A shaper combining) a body-.casting; a ram; a unidirectional ull-gear; a crossrail; a table; a transmission-system leading to'said table; a bull-gear transmission; a transmission driven synchronously with said bull-gear and comprising a motion-converter located at the cross-rail for producing intermittent motion; fast-motion transmission; a clutch for causing either of said two transmissions to convey motion to said firstmentioned transmission system; and a single motion-reverser for simultaneously reversing the directional efiec'ts on-the table of both of said transmissions.

10. A shaper combining a body-casting; a ram; a unidirectional bull-gear; a crossrail; a table; a transmission-system leading to said table; a bull-gear transmission; an intermittent-motion transmission driven synchronously with said bull-gear and comprising a feed-stroke regulator located at the cross-rail; a fast-motion transmission driven at a rate proportional to the stroke frequency of the ram; shift mechanism for causing either of said two transmissions to convey motion to said transmission system.

11. A shaper combining a table; a main body-casting; a propelling-transmission; a feed transmission comprising a motion converter at the cross-rail adapted to impart intermittent motion to said propelling transmission; a quick traverse transmission adapted to impart continuous motion to said propelling transmission; and a shift-mechanism at the cross-rail for causing either said feedtransmission or said quick-traverse transmission to drive said table.

12. A shaper combining a body-casting; a ram; a unidirectional bull-gear.; a crossrail; a table; a transmission-system leading to said table; an intermittent-motion transmission and a continuous fast-motion transgear f ble on said cross rail transversely to said verv tical slide-way and having a horizontal work-supporting surface; an auxiliary table propelling transmission; a horizontal ram overhanging said table; a main-line transmission leading to said ram for periodically reciprocating it in said top-slide slowly to and rapidly fro along a fixed path parallel with but above said work-supporting surface; a tool-head on the over-hanging extremity of said ram and adjustable in a plane perpendicular to the path of said ram to determine the depth'of cut of its tool; a fast-running branch-line transmission and an intermittent motion transmission, each deriving motion from the portion of said main-line transmission determining the stroke frequency of the ram; shift mechanism combined with last-mentioned transmissions for enabling either at option to drive said auxiliar transmission for feeding said table stepy-step along said crossrail transversely to said path to project successive horizontal strips of the work thereon into the horizontal path of the tool carried by said ram, or forquickly traversing said table along said cross-rail transversely to said path; and a manual control for said shift mechanism for causing either the inter mittent or the quick-traverse means to propel said table by power.

14. A shaper combining a body-casting; a

ram; a unidirectional bull-gear; a crossrail; a table; a transmission-system leadin to said table and comprisin a single unidlrectionalshaft from the si e of said bodycasting adj acent said bull gear to said crossrail; a bull-gear transmission; an intermittent-motion transmission driven by said unidirectional shaft synchronousl with said bull-gear and comprising a fee -stroke regulator located adjacent said cross-rail; a fastmotion transmission; and a single motionreverser located at the cross-rail for simultaneously reversing the directional effects on the table of both of said transmissions.

In witness whereof, I have hereunto subscribed my name.

WILLIAM F. ZIMMERMANN. 

